Schwinger effect of a relativistic boson entangled with a qubit

Abstract

We use the concept of quantum entanglement to analyze the Schwinger effect on an entangled state of a qubit and a bosonic mode coupled with the electric field. As a consequence of the Schwinger production of particle-antiparticle pairs, the electric field decreases both the correlation and the entanglement between the qubit and the particle mode. This work exposes a profound difference between bosons and fermions. In the bosonic case, entanglement between the qubit and the antiparticle mode cannot be caused by the Schwinger effect on the preexisting entanglement between the qubit and the particle mode, but correlation can.

15 pages

References in corpus (6)

• A Primer for Black Hole Quantum Physics
• Degradation of non-maximal entanglement of scalar and Dirac fields in non-inertial frames
• Effective Action of QED in Electric Field Backgrounds
• Entanglement Generation by Electric Field Background
• Pairwise mode entanglement in Schwinger production of particle-antiparticle pairs in an electric field
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Cited by in corpus (4)

• Fermionic steering and its monogamy relations in Schwarzschild spacetime
• Schwinger effect of Gaussian correlations in constant electric fields
• Quantum correlation between a qubit and a relativistic boson in an expanding spacetime
• States of charged quantum fields and their statistical properties in the presence of critical potential steps